one more attempt for fixing the windows build

git-svn-id: http://libtorrent.googlecode.com/svn@10498 f43f7eb3-cfe1-5f9d-1b5f-e45aa6702bda
fix test_torrent_parse for windows

git-svn-id: http://libtorrent.googlecode.com/svn@10499 f43f7eb3-cfe1-5f9d-1b5f-e45aa6702bda
don't rely on TORRENT_EXTRA_EXPORT in examples

git-svn-id: http://libtorrent.googlecode.com/svn@10500 f43f7eb3-cfe1-5f9d-1b5f-e45aa6702bda